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QJEEM19Phbef6: JEE Main 2019 Physics - Class 11 JEEM19Phbef6 Solution: The stream of a river is flowing with a speed of 2km/h. A…

The stream of a river is flowing with a speed of 2km/h. A swimmer can swim at a speed of 4km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight ?

Multiple Choice Options

  • A 150°
  • B 120°
  • C 60°
  • D 90°

Step-by-Step Verified Solution

Draw velocity diagram
JEE Main 2019 (Online) 9th April Morning Slot Physics - Motion in a Plane Question 64 English Explanation sin⁡θ=vrvsr=12

θ=30o

ϕ = 90 + θ = 120°

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